start two peripheral at the same time

[johananh]

I would like to use PPI in order to set out pin and start a timer at the same time, from software.

I cant find a way to create an event from software that will fork a START to both peripherals.

My current solution is to short the output pin with an input pin, put the output high, and let the input pin start the timer via PPI.

Is there a nicer way to do it?

Thanks 

[Einar Thorsrud]

Hi,

You are not really using PPI when you trigger the START task of the peripherals from software. You have to use PPI in order to trigger both START tasks simultaneously, and I think the way you have done it is the best approach. I agree it does not seem very elegant, but I do not see any issues with it as long as you have enough available GPIOs.

[johananh]

OK, Thanks very much.